Aluminum alloy AA7075 (Al-Zn-Mg-Cu) specimens were prepared using selective laser melting, also known as powder bed fusion additive manufacturing. In the as-manufactured state, which represents a locally rapidly solidified condition, the prevalence of a previously unreported icosahedral quasicrystal with 5-fold symmetry was observed. The icosahedral quasicrystal, which has been termed ν-phase (nu-phase), was comprised of Zn, Cu, and Mg.
|Number of pages||5|
|Journal||Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science|
|Publication status||Published - 15 Feb 2019|